NTN 6205 LLU Deep Groove Ball Bearings 25x52x15mm

The NTN 6205 LLU is a single-row deep-groove radial ball bearing engineered for demanding industrial applications. It has an inner diameter of 25 mm, an outer diameter of 52 mm, and a width of 15 mm. The “LLU” suffix indicates that the bearing is sealed with rubber contact seals on both sides, providing enhanced protection against contaminants and better retention of lubricant. According to specifications, this model from NTN is rated with a dynamic load capacity around 14 000 N and a static load capacity around 7 850 N. It is suitable for continuous operation with a grease-lubricated maximum speed in the region of 8 900 rpm, and is designed for operating temperatures typically from approximately -40 °C up to around +120 °C. The bearing uses high-carbon chrome steel construction, a pressed steel cage, and a precision vacuum hub to ensure smooth operation, low vibration, and long service life under high stresses and harsh conditions. Because of its sealed design, it is especially well suited for environments where dust, moisture or other contaminants are present, or where maintenance access is difficult.

Key Features:

Dimensions: 25 mm (ID) × 52 mm (OD) × 15 mm (Width)

Double rubber contact seals (LLU) on both sides for protection and lubricant retention

Single-row deep-groove design supports radial and moderate axial loads

High dynamic load capacity (~14 000 N) and high static load capacity (~7 850 N)

Rated for high-speed operation (~8 900 rpm with grease)

Operating temperature range approximately -40 °C to +120 °C

Ideal for motors, gearboxes, pulleys, and other rotating machinery where sealed reliability is needed